6
Configuring FIELDBUS
3.1.2 BIT-PACKED GETFROM
Set the PIN for the JUMPERS 1 - 8 GET FROM to build a word of logic sources.
Parameter description
Range
Default
GET FROM
PIN 000 to 720
400)Block Disconnect
400)Block Disconnect
BIT-PACKED
BIT-PACKED
GETFROM
GETFROM
comprises 8 bits for reading
logic values in the PL/X using a
GET
GET
FROM
FROM
window.
The 8 bits group into the lower byte for the FIELDBUS
word, the higher byte is zero.
(word = 0000 0000 J8, J7, J6, J5, J4, J3, J2, J1 )
The
JUMPER
JUMPER
1
1
bit is the least significant.
Note that within the
BIT-PACKED
BIT-PACKED
GET
GET
FROM
FROM
menu, the
JUMPER 1 - 8 nomenclature denotes the connections to
bits configured by each
GET
GET
FROM
FROM
.
If the host can decode bit-packed words, use JUMPERS
1 to 8 for logic values (JUMPER 1 shown opposite).
R
ENTRY MENU LEVEL
ENTRY MENU LEVEL
1
1
CONFIGURATION
CONFIGURATION
2
2
FIELDBUS CONFIG
FIELDBUS CONFIG
3
3
BIT-PACKED GETFROM
BIT-PACKED GETFROM
JUMPER 1
JUMPER 1
4
4
GET FROM
GET FROM
NOTE
: A logic or linear PL/X
parameter may be connected.
•
Non-zero (+ or -) values
result in logic 1
•
Zero results in logic 0.
Paameter
JUMPER 8 GET FROM
JUMPER 7 GET FROM
JUMPER 6 GET FROM
JUMPER 5 GET FROM
JUMPER 4 GET FROM
JUMPER 3 GET FROM
JUMPER 2 GET FROM
JUMPER 1 GET FROM
PIN
752
751
750
749
748
747
746
745
Bit
8
7
6
5
4
3
2
1
BIT-PACKED
BIT-PACKED
GETFROM
GETFROM
selects up to 8
GET
GET
FROM
FROM
PINs to form the lower 8-bits of a 16-bit WORD to be
appended to the PLC Input Cyclic data.
Within the
BIT-PACKED
BIT-PACKED
GETFROM
GETFROM
menu,
JUMPERs
JUMPERs
1-8
1-8
configure the sources for bits 0 to 7 respectively, i.e.
JUMPER
JUMPER
1
1
connects the least significant bit.
The data of the BIT-PACKED
PINs are combined into the
lower 8 bits of a single WORD.
Only
GET
GET
FROM
FROM
PINs not
selected as
400)Block
400)Block
Disconnect
Disconnect
are included in
the cyclic data.
The 9 WORDS (maximum)
for both the cyclic input and
output areas are allocated
sequentially, in the order:
FIELDBUS CONFIG JUMPERS 1
- 8 and BIT-PACKED GETFROM
FIELDBUS CONFIG JUMPERS 1 - 8 plus BIT-PACKED GETFROM
These nine parameters appear in sequence in the first nine registers of the INPUT AREA.